From b60292f2734c787315a9504f0ab1fe7bc1957e3e Mon Sep 17 00:00:00 2001
From: Will Hunt <will@half-shot.uk>
Date: Tue, 15 May 2018 16:10:25 +0100
Subject: [PATCH] Set webhook names to sender names when displayname is too
 short

---
 src/bot.ts                        |  4 +---
 src/matrixeventprocessor.ts       | 23 ++++++++++-------------
 test/test_matrixeventprocessor.ts | 16 ++++++++++++++--
 3 files changed, 25 insertions(+), 18 deletions(-)

diff --git a/src/bot.ts b/src/bot.ts
index 0a69e4a..496026f 100644
--- a/src/bot.ts
+++ b/src/bot.ts
@@ -18,9 +18,7 @@ import { Provisioner } from "./provisioner";
 // messages get delayed from discord.
 const MSG_PROCESS_DELAY = 750;
 const MIN_PRESENCE_UPDATE_DELAY = 250;
-const AVATAR_SIZE = 512; // matrix -> discord
-const MAX_DISCORD_NAME_LENGTH = 32;
-const DISCORD_NAME_START = 0;
+
 // TODO: This is bad. We should be serving the icon from the own homeserver.
 const MATRIX_ICON_URL = "https://matrix.org/_matrix/media/r0/download/matrix.org/mlxoESwIsTbJrfXyAAogrNxA";
 class ChannelLookupResult {
diff --git a/src/matrixeventprocessor.ts b/src/matrixeventprocessor.ts
index 92cdd4f..673d234 100644
--- a/src/matrixeventprocessor.ts
+++ b/src/matrixeventprocessor.ts
@@ -9,7 +9,7 @@ import * as mime from "mime";
 import * as log from "npmlog";
 
 const MaxFileSize = 8000000;
-
+const MIN_NAME_LENGTH = 2;
 export class MatrixEventProcessorOpts {
     constructor(
         readonly config: DiscordBridgeConfig,
@@ -44,12 +44,16 @@ export class MatrixEventProcessor {
         if (this.config.bridge.disableHereMention) {
             body = body.replace(new RegExp(`@here`, "g"), "@ here");
         }
-
+        let displayName = event.sender;
+        let avatarUrl = undefined;
         if (profile) {
-            profile.displayname = profile.displayname || event.sender;
+            if (profile.displayname && profile.displayname.length > MIN_NAME_LENGTH) {
+                displayName = profile.displayname;
+            }
+
             if (profile.avatar_url) {
                 const mxClient = this.bridge.getClientFactory().getClientAs();
-                profile.avatar_url = mxClient.mxcUrlToHttp(profile.avatar_url);
+                avatarUrl = mxClient.mxcUrlToHttp(profile.avatar_url);
             }
             /* See issue #82
             const isMarkdown = (event.content.format === "org.matrix.custom.html");
@@ -60,18 +64,11 @@ export class MatrixEventProcessor {
               body = `*${body}*`;
             }
             */
-            return new Discord.RichEmbed({
-                author: {
-                    name: profile.displayname,
-                    icon_url: profile.avatar_url,
-                    url: `https://matrix.to/#/${event.sender}`,
-                },
-                description: body,
-            });
         }
         return new Discord.RichEmbed({
             author: {
-                name: event.sender,
+                name: displayName,
+                icon_url: avatarUrl,
                 url: `https://matrix.to/#/${event.sender}`,
             },
             description: body,
diff --git a/test/test_matrixeventprocessor.ts b/test/test_matrixeventprocessor.ts
index 343558c..f8e104d 100644
--- a/test/test_matrixeventprocessor.ts
+++ b/test/test_matrixeventprocessor.ts
@@ -99,7 +99,7 @@ describe("MatrixEventProcessor", () => {
             Chai.assert.equal(evt.author.url, "https://matrix.to/#/@test:localhost");
         });
 
-        it("Should should contain the users userid if the displayname is not set.", () => {
+        it("Should should contain the users userid if the displayname is not set", () => {
             const processor = createMatrixEventProcessor();
             const evt = processor.EventToEmbed({
                 sender: "@test:localhost",
@@ -112,7 +112,19 @@ describe("MatrixEventProcessor", () => {
             Chai.assert.equal(evt.author.url, "https://matrix.to/#/@test:localhost");
         });
 
-        it("Should should contain the users avatar if it exists.", () => {
+        it("Should should contain the users userid if the displayname is too short", () => {
+            const processor = createMatrixEventProcessor();
+            const evt = processor.EventToEmbed({
+                sender: "@test:localhost",
+                content: {
+                    body: "testcontent",
+                },
+            }, {
+                displayname: "t"}, mockChannel as any);
+            Chai.assert.equal(evt.author.name, "@test:localhost");
+        });
+
+        it("Should should contain the users avatar if it exists", () => {
             const processor = createMatrixEventProcessor();
             const evt = processor.EventToEmbed({
                 sender: "@test:localhost",
-- 
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